TCP SYN (JA4T)

35640_2-4-8-1-3_8910_9

first seen 2026-07-17 05:20 · last seen 2026-08-24 21:57 · JSON

Decomposed attributes

TCP window35640
Option kinds2-4-8-1-3
MSS8910
Window scale9

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1713h1_ab0a1bf427ad_ecd0401ec68b Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1.The fingerprint page shows the full measured match list. More on the catalog.5

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn11enus_f52f937d55db_000000000000_0000000000005

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:8910:mss*4,9:mss,sok,ts,nop,ws:df,id+:03
4:52+12:0:8910:mss*4,9:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:8910:mss*4,9:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.15

Country

fingerprintco-occurrences
US · United States5

Network (ASN)

fingerprintco-occurrences
AS31898 · Oracle Corporation5